SmartAboutThings writes: Mozilla has oficially introduced the first update to its mobile Firefox OS. The very first update to Firefox OS adds some important new features, performance improvements and additional language support. Some of the most important changes include MMS support, Push Notifications API, Contact Management enhancements, Firefox browser downloads, Keyboard improvements and much more. In a separate announcement, Mozilla also said that new launches of Firefox OS smartphones will begin soon with more devices and in more markets around the world.